Finding the Fourth Proportional to 2,183.24, 3,012 and 1,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.24 : 3,012 = 1,298.72 : x
2. Step 2: Convert to fraction form
   2,183.24/3,012 = 1,298.72/x
3. Step 3: Cross multiply
   2,183.24x = 3,012 × 1,298.72
4. Step 4: Simplify right side
   2,183.24x = 3,911,744.64
5. Step 5: Solve for x
   x = 3,911,744.64/2,183.24
6. Step 6: Final answer
   x = 1,791.72